actually I don't care that much... but not too bright or just black.
Pretty simple question. What colour do you sketch with and why? This is assuming you're going to line the sketch and not use it as lineart
I use to sketch in red but a friend of mine is colour blind, so they see red as yellow. After they told me that I started to sketch in light blue, and I've been doing that ever since
Honestly I grab a character’s colors when I open their ref so I usually just pick a color from their palette and use that. Otherwise, usually black or whatever color I last used if the program was still open or had it saved. I’m lazy like that ¯\_(ツ)_/¯
I usually do blue or black, since they're the two that look most sharp, and the sketch brush I use is already fairly opaque, so it ends up being lighter than the base color :O
I use red or blue I did black but even with opacity lowered on a different layer it was often difficult to get my lines right at times so I started using a different color. Plus I felt artsy.
I sketch with whatever color is in my digital palette from my previous session and turn down opacity later to line over more easily lol i'm lazy
I sketch with different colors associated with the character i'm drawing (unless it's too light of a color then i just use a darker version of the same color). And on top of that, sometimes i'll use other colors that contrast the main color for different details like clothes and hair just so i can tell stuff apart more easily